Improvement in machine fob making- clothes-pins



(Stanze 1 @anni (time,

JOHN B. SMITH,` OF SUNAP'EE, NEW HAMPSHIRE.

Leners Patent No. 85,338, dated December 29, 186s.

ne Schedule referred to in these Letters Patent and makingpart of thesame.

To all whom it may concern.-

Be it known that I, JOHN B. Smm, of Sunapee, in the county of Sullivan,andState of New Hampshire,

g have invented anewand useful Automatic Machine for Making Headed andSlitted Clothes-Pins; andI do hereby declare that the following is afull, clear,

and exact description of the constrnctionand operation thereof;reference being had to the accompanying drawings of the same, which makepart of this specification, and in Which- I Figure l represents a planor top view of a machine embracing my improvements;

Figure 2 represents a vertical section of the machine, taken at the linex x of g. l;

Figure 3 represents a vertical cross-section, taken at the line ov o offig. l;

Figure 4 represents a sectional view of the mechanismfor operating thearms for receiving and depositing the blanks between theclamping-centres;

Figure 5 represents a sectional view of the centres and the seats forreceiving the blanks from the depositing-arms Figure 6 represents thepin-blank;

Figure 7 the piu as shaped by the gouge;

Figure 8, the pin as shaped by the heading and pointing-cutters 5' andFigure 9, the slitted'and finished pin.

My invention relates to certain devices, herein specifically described,whereby a squalebillet of wood, of the proper length, is carried to thelcutters, turned, headed, and slotted, by successive' and regularautomatic movements, and delivered from the vmachine a finishedclothes-pin.

In the accompanying drawings, A A' represent the frame upon which theseveral parts of the mechanism are arranged and supported.

This frame consists of two parts, upon one of which, A, the receivingand turning-mechanism is mounted, and upon the other, A', theslittingand deliveringmechanism is arranged. A

The journals B B of the centres a a are supported upon the front frame,A, by standards C, arranged so as to leave a suitable space bet-Ween thecentres a for the movement of a cutter-carriage, D.

The cutter-carriage is arranged on one side of thev centres, and thereceiving-mechanism of the pin-blanks on the opposite sideof thecentres, and projects frontward from the frame, directly in a linetransversely with the cutter-carriage. The receiving-mechanism consistsof a horizontal frame, E, upon which a platform, E', is placed, having aroller, lg b, fitted in each end, around which, and a roller, 11i,beneath the frame, an endless apron, F, passes, so that the portionabove the platform is horizontal, and upon` 'which the pin-blanks areplaced crosswise, in a row, and fed, one by one, tothe receiving, anddepositing-arms.

The platform has parallel sides, F', for the purpose of holding thepin-blanks evenly upon the feeding` apron.

Theinner end of the platform E is notched,vand hasv a lip, c, turned up,against which the pin-blank is fed and arrested.

Between this end of the platform and the front side of the frametworeceiving and depositing-arms, G, are placed, so' that their front endsit within themotches of the platform, while their opposite ends aresecured to a head-piece, G', fitted in bearings, so that the front endsof the arms G may move in the arc of a circle,

to Ycarry the pin-blank to the centres.

The front ends of these arms G 'are bent, so as to form seats, d d, andt within the notches, and receive the pin-blank as it is fed from theapron F.

One end ofthe outer roller b carries a ratchet-wheel, H, into which litsa ratchet-pawl, I., hinged to the upper end of an arm, Il, vpivotedat'Iz, and whose lower end is connected to a pendent hinged arm, I3, bymeans of a rod, I, the hinged pendent arm Is being located so as toreceive the action of a cam, J on the cam-sha K, which vibrates thepivoted arm I, and thus communicates an intermittent motion to theratchet-paul I and endless feeding-apron.A y The head-piece G ofthelifting arms G has a pinion, f, at one end, into which match the cogs ofa rack, g, on the upper end of an upright arm, L, Whose lower end ishinged to the front end of a horizontal arm, L', pivoted at h, and whoseinner end extends to and is operated by a cam, M, on 'the cam-shaft K,in sueh manner as to give' an intermittent vertical motion to the rackg, to operate thevlifting-arms G.

In delivering the pinblank, the arms G receive it from the endless apronF, and, rising through about a quarter of a circle, carry itv over, anddeliver it upon seats 'i il, arranged directly beneath the centres, inthe ,same vertical plane with their axes; and, in order to hold thepin-blank while being carried over to the centres, I secure aspring-wire guide, N, to a post, N', above thearms G, so as to extendfrom the inner end of the feeding-apron F to just above the centres inthe arc of a circle, whose'centre is the axis of the bearingsofthe-lifting-arms, so that the arms, with the pin-blank, will sweepbeneath the spring-guide Nin such close proximity as to hold thepin-blank Vupon its seats on the ends ofthe arms G whilejbejng carriedover to the cutters.

The gouge j, for cutting and shaping thehody of the pin, is locatedbetween the centres and the axis of the lifting-arms. It is clamped in astock or arm, j', secured toa horizontal carrying-rod, O, fitted inbearings, k, on the frame A, parallel to the axis ofthe centres, and hasa traversing and slightly-oscillating 'motion to and from the centres.

The gouge and stock extend upward from the supporting-rod O in aninclined position, and its-travers.- ing motion is produced andregulated by the motion of the cutter-carriage D on the opposite side ofthe sentres, while its oscillating motion is just sudicient 'fo 'giveshape to the body of the pin, and is produced md governed by a fixedlguide, l, secured to the side )f the frame A, and which is the exactcontour of the cody of the pin, as shown in hg. 7; and the oscillation3f the gouge is governed by this guide by means of an arm, fm, extendingfrom the right end ofthe traversingrod O, as shown in fig. 1, so as tohold the cutter to the pin, and shape its sides.

The traversing motion of the gouge parallel to the axis of tle centresis effected by the traversing motion` of the cutter-carriage D, at rightangles to the axisv of the centres, by means of a righteangled arm, P,pivoted to a bracket, n, on` the top of the frame A, having its frontend hinged to the left end of the traversingrod O, by means of anintermediate link, o, and its opposite end pivoted to the re'ar side ofthe transverse cutter-carrage.

This transverse cutter-carriage D isv mounted upon ways, p, secured to abed-plate, Q, on the frame A, so that the carriage may approach andrecede from the centres. It carries two cutters, one, q, to shape theend of thepin to be slitted, andthe otherr fr, to form the head of thepin.,

These cutters are-adjusted and clamped between horizontal bars at thetop of the carriage, .so that their cutting-edges are on a level with-the axis of the centres.

The motion'of this transverse carriage D is derived from a grooved cam,R, on the cam-shaft K, Ainto which groove tits a wrist-pin, s, on thelower end of the lever s', pivoted, at the middle of its length, to anarm, s2, of the frame, while the upper end of this lever s' is connectedto said carriage by a coupling-arm, 53.'.

As the'groove of the cam It, therefore, vibrates the lever s, it shouldbe such `as to cause the carriage to approach and recede from thecentres at the proper time, 'and with the proper motion.

The journals B B of the centres are provided with small pulleys,t,'around which bands u pass to larger pulleys, fv, on the driving-shaftS, secured, in hearings, to the lower portionfo'f the frame, and fromwhich the centres receive their revolving motion. l y

The right centre, in addition to its revolving motion, has also `anaxial motion, for the purpose of clamping the pin-blankbetween the'centres, so that the distance between the centres must he greaterfthanthe length of the blank.

In order, therefore, to support the pin-blank in aline coincident withthe centres, after it is deposited by the arms, and before it is clampedby the centres, I arrange two supports or seats, i a?, directly beneaththe centres,.

and in avertical plane with the axes thereof', so arranged that theywill he within the points of the centres, to receive and support thepin-blank in a horizontal line therewith.

These seats i i) are formed of V- shaped notches in the upper ends ofshort standards, l2,.se`cured to the bed-plate Q, upon which thetransverse' carriage moves.

One of these notched seats i is fixed, and the other movable. l l

'lhe movable seat i is connected, by a hinged joint,

i, to its standard fi, and this movable seat is connected'A to ahorizontal piston-rod, T, to be presently described.

It will be observed that the seats are placed within the ends ofthecentres, and, in this position, they would interfere with the turning ofthe pinlblank. To avoid this, however, the right-centre journal B' hasan axial movement, and, when forced inward against the endV of ;thepin-blank, the latter is forced out ofthe fixed seat fi, Vand the rightcentre passes over the same, so as to hold that end of the pin-blankclear of its seat c', as shown in fig. 5, Sheet N o. 3 of the drawings.-

This axial motion ofthe centre B is produced bya cam, U, on the rightend of the cam-shaft K, which vibrates a lever, U', pivoted, at a, tothe frame A, and

whose upper end is connected tothe right end of the journal B by a link,x2, which lits intoa neclr on the end of said journal, so as to permitit to revolve, while the vibration of the lever is .such as to move thecentre inward, to clamp the pin-blank when deposited upon the seats, andto withdrawit therefrom by a spring, 43, and release the pin, whenturned. y

Simultaneously with the removal of the' pinfblank from the fixed seat,the movable seat il is also released from the pin-blank, and shovedbeneath theleft centre, out ofthe way. This is eected by the piston-rodT, to one end of which it isconnected,'while its outer end is connectedto the right end of the journal B', so that the movezn fut of saidjourna also moves the pistonrod, and the pin-blank is, therefore,released trom the seats at both ends at once, and clamped, to be turned,

and released and rese-ated, to be removed after being turned. l

The 'jointed seat i* moves back andv forth with the axial movement ofthe right centre, or it may be brought back by a spring, 42.

lhe pin, beingpow turned to the proper form, headed, and pointed,requires only to be slotted to finish it. rlhis is accomplished by themechanism arranged upon -the frame A', which is located at the rear andleft of the frame A.

Directlyin the rear of the transverse cutter-carriage,- and upon the topof the frame A,'I arrange a bede piece, `V, in the front edgeof which Iarrange a seat, y, into which the turned pin is deposited..

The mechanism for eii'ectin g this consists of a curved arm orgoose-neck, W, hinged to thefixed bed-plates Q of the transversecarriage D, and'connected to the transverse cutter-carriage by means ofa link, z, immediately above 'said hinged jointof the arm W, while theupper end ofthis curved arm has a lspring-mouth or hand-shaped end, z',for the purpose of grasping the turned pin while resting upon the seatsl'i i', and just as the-reciprocating journal retires from the pin, andcarries it over to the seat y, to be slotted.

The motion" of this seizing 'and delivering curved arm W is effected ndregulated by the motion of the transverse cutter-carriage D, and thecurve of the arm or goose-neck is such that its spring-mouthed end willdescend and seized the turned pin, and carry it up and over to theseat'y, its end passing into an opening, 2, in the bed-piece V for thatpurpose.

The motion of the transverse cutter-carriage towards the centres causesthe arm to -move down, and seize the turned pin, and the receding motionof said carriage causes the arm to rise untill its end, within which isgrasped the turned pin, is coincident with the groove or seat y of thesaw-name.

In 'order to release the pin from the grasp of the y spring-mouth of thegoosenec k,.l arrange upon the bed-piece V, immediately above the seatfy, two springholders, y' y', which extend over the seat, so as to bearslightly upon thexpin as it 'is drawn into the seat beneath thespring-holders, and hold it there, until it is pushed therefrom, betweentwo clamping-levers, by means of a piston-rod, X, arranged atthe rightend Aof the frame A', in the line of the seat, so that its end will abutagainst the end of the seated pin.

The acting end of the piston-rod is suppoxted'and guided by means of abracket, 3, on the end of the bed-piece, while the other end .isconnected, by a joint,`

to an uprightvarm, Y, hinged to the frame A near'ts base, andwhichcarries an adjustable cam-arm, 4, arranged so as to receive the actionof a cam, 5, on the inner side of the cam U of the cam-shaft.

The upright arm Y is steadied in the movement by a bracket, 6, from themain flame.

The slotting-saw Z is arranged-upon the topV of the rear frame, withitscutting-teeth directly in aline with the seated pin, while the clampsfor holding the pin are arranged between the seat y and the saw.

These clamping-levers are arranged at right angles to each other, one, 7being horizontal, and the other, 8, vertical; and their contiguous endsare provided with jaws, 9, curved to correspond with thesides of thepin, so that, when the' pin is pushed inward to the saw, the upper jawcomes down, and clamps the pin upon its seat, while the vertical jawmoves forward, and clamps the .side of thepin, forming, as it were, acontinuation o f the seat y.

The horizontal clamping-lever is hinged to'a vertical stud, 10, on thetop of the frame A', and iszoperated, so as to clamp and release thepin, by means of a lever, 11, pivoted to the frame A', one end beingconnected to theclamping-lever by a rod, w, and the other eX- tendingabove the cam-shaft, to receive the liftingaction of a cam, 12, whichdepresses the upper jaw, while a spring, 13, constantly tends to elevateit.' Thus, when the cam is not acting, the jaw is held up 'by thespring.

The vertical lever 8 is hinged, at the middle of its length, to the rearframe, and is connected, at its lower end, to a horizontal link, 14,which, -in`turn, is connected to the upper end'ofl an arm, 15, hinged tothe base of the frame, so as to -receive-the action of a cam, 16, on thecam-shaft, so as to force, at proper intervals, the upper end of thehinged arm 15, and the lower end of the vertical lever 8, outward, andconsequently forces the horizontally moving jaw inward against the pin.

The two jaws thus arranged and operated act simultaneously', to clampand release the pin. h

The 'slotting-saw Z 4is mounted, in suitable bearings, upon a castironframe, 17, and has a horizontal-traversing movement upon ways, 18, onthe top of the frame A', for the purpose of feeding the saw whileslitting the pin.

This .traversing movement is eliected by means of a rear vertical lever,19, hinged to the frame, and connected, by a link, lto the saw-frame,and, at its lower end, to a horizontal rod, 20, which, in turn, isconnected to a pivoted bell-crank, 21, having a connection with anuprighi hinged arm, 22, whose upper end is connected, by a pin, 23, to agrooved cam, 24, on the camshaft.

The cam is of such form as to operate the several connecting-rods, so as'to cause the saw to approach, slot, and recede from the slotted pin, atthe proper time, and with the/proper motion.

The saw has cutters on each side, for widening and smoothing thel slotof the pin.

The savv derives its motion from-a band, 25, passing round a smallpulley, 26, on the saw-shaft, and leading to a larger pulley,27, on theshaft 28, in the lower part of the frame.

The shaft 28 derives its motion from a band, 29, leading froni a pulley,30, on the driving-shaft, to a pulley, 31,'on said shaft 28.

This band 29 has the form of an L, by means of two intermediate pulleys,32, on a'vertical spindle, as shown in lig. 1 of the drawings.

main frame, said shaft carrying a. pinion, 37, on its outer end, whichengages with cog-Wheel, 38, on the end of the cam-shaft.

An endless delivering-aprmnQ, is arranged beneath lthe saw, so asv toreceive and deliver the finished pins,

which drop, of their own weight, upon said apron, after y ment andduration of action will readily suggest themselves to those skilled inthe art. A detailed description, therefore, of the form of these cams,and of their time and duration of action, is not deemed necessary.

Instead of the clamping-levers, for holding the pin to the saw to' beslotted, a turning-table or plate may be used for that purpose.

-What I claim, is-

l. The lifting and depositing-arms G, constructed and operatedsubstantially as described, to carry the blanks to and deposit the sameupon the seats or pinrests i i, to be clamped bythe turning-centres.

2. The combination of the lifting and depositing-v arms Gr with thecurved spring-guide N, for holding the pinfblank'to the arms while beingcarried over to the turning-centres, substantially as described.

3. The fixed and movable seats or pin-,rests i i,

with the turning-centres, operating substantially as v described.

4. The grasping and carrying-arm or goose-neck W, constructed andoperated substantially as described, to carryithe turned pin from theseats or pin-rests i 'i to the seat y, to be slotted.

5. The'combination of the seat-y and the releasingspiin gs y y, andtheir arrangement, in reference to the carrying-ar1n W, the pushing-armX, and the clarnping-`y jaws q q, substantially as shown and. described.

6. In combination with the seat y and spring-holders y y', thepiston-rod X, operating ,substantially as described.

7. The clamping-levers 7 and 8, or their equivalent,

in combination with the seat y, the piston-rod X, and

theslotting-saw Z, operating substantially as described. 8. Thetransverse traversing cutter-carriage D, con nected with and operatingthe longitudinally-reciproeating cutter-gouge, substantially asdescribed.

9. The transverse cutter-carriage D, connected with and operating theseizing and carrying-arm or gooseneck -W, substantially as described.

JOHN B. SMITH. Witnesses:

vCummins C. WINTER, GARLoos GArLL'.

